put travis sciprts as one line for and conditions to work

Author: mourner

.travis.yml

@@ -14,9 +14,6 @@ env:
       p+q8QzCG1Np9D1Kq9K0miYqHgZxgu4D/4Mwy04bh1UfyoUcDfB1tJmEtsKY/
       8Bl46ZfhxbTG39b6Y315GuU+49QdFMEXhSqx/G7on1xC4aYLXLc=
 before_script:
-- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false &&"
-- "gem install travis-artifacts"
+- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false && gem install travis-artifacts"
 after_success:
-- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false &&"
-- "cd dist && zip -x .DS_Store -r leaflet-${TRAVIS_BRANCH}.zip . &&"
-- "travis-artifacts upload --path leaflet-${TRAVIS_BRANCH}.zip --target-path build"
+- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false && cd dist && zip -x .DS_Store -r leaflet-${TRAVIS_BRANCH}.zip . && travis-artifacts upload --path leaflet-${TRAVIS_BRANCH}.zip --target-path build && echo uploaded"